Planoqrapii co



C. E. TIDEMAN.

POWER DRIVEN VALVE GRINDER.

APPLICATION FILED AUG-30.1918.

Patented Oct. 14,1919.

2 SHEETS-SHEET I avwewtoz (ar/ 1 7'z0ema/l. W

C. E. TIDEMAN.

POWER DRIVEN V ALVE GRINDER. APPLICAIION FILED AUG- 30. iii l8.

Patented Oct. 14,1919.

2 SHEETS-SHEET 2- I Qwuewtoz Carl E. Edema/z.

fl/ moamuas,

THE COLUMBIA PLANOURAIII can, WASHINGTON, D. c.

. s e i sss s sesses. NE- eat: To

p POWER-DRiVEN VALVE-QRINDER.

L318ZQ7- ee fiea i e e w reteste Oct- 4,1 19: npl getion filed A gust 30, i918- Serial no; 2 ,077.

Twit-we ne 2mm: 1 upp r. end. tothe nd r t ceo the auxiliary Be t knew tha G R E- TIQEQQAN, gearrsi' I i I i i en i? the Un ted S at s r siding at T e a x l ry shah 1e proj cts beyondt ie Wor este u t ie c unty of; WQ Q tet nd' nec 5 i c s na and ts. s a is 5 St te f M sachuse ts, have nvent d, r i rmed h a tlfi, a dapiv t yma ned win new id: sef l I prov me t f .1. 1 up n the. hea .6., is valv ngaging Power-P sm Yelvei i der tof hiQh the. bi 1 e p vot 1 isvpreferably n or i- 60 fiQllew ns s sl se fii t on, e enc b ng aryv co te Pin, whereby the M 8 is had ther a o the @9 11; anyns draw n s ach bly' secured ont shead uit ble Thi ili eil pe relates Q a Po r-dr ven. b llabe ngs 19 r int rpos d betw en he va r nde and his 9 .1- it 'obi et the. head .6. andflie weror ter and o t prosli tien oi a simp e iig i fiisie t e ce. neck 1 r ma ng he deu ee ffi: 65 r sr nd ne va re of. a m tes ci n by causi the parie a r lv a y- W hthis an other obiec w n v e he" The pr mary haft 3. games has erei on com ris s. cer a n, omb ea sleeve 0 fi sel' w th. san 'e th d' r a g lnee i -part a a e fii yiHu ux a y haf s el e n Qu s -y t in he sem i nyie rawi and; mil alz y. onst c ed slee fi-Qt termed b 70 specifically described in the following specig the neck 15 of the Figs, 2. s t om nd: me e Pa ticu ar y Poin d 1 .F edly ewre tq hef' ns ii oi e 20 in seaweed la iiee u ili r shaf 1: y'a teas: ate 1. the d aw n s I i Thi ate s? p e ie w th an e li eatd F ura is a; ver ieel QPiQQPl: new -oi ot n. w ich is sliciabli it iiiited the. 75 the deyicgwhile H 4 sleeve. 23; the. sleeve 23is pi ovi 25 a le es fie rats an ii l F l ev m dr prii s l roughft i i t 2.;

Fig.3 is a planv I gears are rotat i t H h g e 23-s ides baclgand 'on the line Fig.1; volvela nd r ereby,- impart; an oscillatory 85 F1052 i a Si a V e ta en at ht fl ng d up er e st; 24; thefi Pre -Qets this and-' ek g i t is slir 'stieilfoii the minis? ii l t esis 3 6f the was eri ape i; oi the e er se f; ti ed e the else-Y es' i w s edso h 119. of the evi e; Q d s u i h medi mi of 117 s-.. a ma es. n w Oil t iea ime Pewsesea te tee the cap being removed. a forth tbie the nesats 'sbt' 2 ;Psimie:

i 5 w hor z al. sesti nal. w ta in i' heiis a ir j i eierlet rie Fig. 6 is a perspective View of the to P a 1 i a and e last nablieseth are 7 is a perspective view of the sleeve eflicientlygriiid tli'e valve. i

normally carri d by th b ellserp afi It ill. benefi e ha theeLQe ate 's Qt-22 Referring to the drawings by numerals, extends longitudinally of 31M921, d at 90 1 designates the casing and 2 the cap. substantial right angles to the slot 22 is a Extending through the cap 2 is a primary curved head 25, constituting a weighted end 40 shaft 3, which revolves upon ball bearings on the balance-plate, which acts somewhat 4. Secured to the inner end of shaft 3 is like a fly wheel in increasing the efiiciency of a primary cog 5, meshing with the auxiliary the device by making the oscillatory move- 95 cog 6. The auxiliary cog 6 is fixedly sement more even and not sudden and erky cured to the primary gear 7 which gear 7 while the gears are rotating.

meshes with the auxiliary gear 8. The auX- Suitable screws, shown by dotted lines 26, iliary cog 6 and the primary gear 7, are Fig. 1, are provided for securing the cap 2 carried by the screw 9, which screw 9 is upon the casing 1. provided with a nut 10, sunk in the outer It will be understood that by reason of face of the cap 2, Fig. 1. The auxiliary my specific structure a very efficient device gear 8 is carried by screw 11, which has a has been produced whereby the rotary movenut 12 on its outer end, which nut, like nut ment imparted to the power or drive shaft, 10, is sunk or bedded in the outer face of and through the medium of the cogs, gears, 105 cap 2. A pin 13 is secured at its inner or and balance-plate, will be converted into oscillatory movement, oscillating the bit 18,

and there y grinding the valve upon which it may be working.

What I claim is;

1. In a' device of the class described, the combination of a casing provided with a cap, a shaft carried by said casing provided with means for holding a bit, a balance-plate positioned in the casing and fixedly secured to said shaft, said balance-plate provided with an elongated slot, a sleeve'in said slot, and driving means carried by the cap and engaging the sleeve for sliding same within the slot of the plate and thereby imparting reciprocal movement to said plate and shaft.

2. In a device of the class described, the combination of a casing and a cap carried thereby, a power shaft extending through said cap, a primary cog secured to the inner end of said power shaft, a pair of screws extending through said cap, an auxiliary cog and a primary gear wheel carried by one of said screws, the auxiliary cog meshing with the primary cog of the power shaft, an auxiliary gear carried upon the other screw, a depending pin secured to said auxiliary gear, a shaft carried by said casing and projecting beyond one end thereof, said lastmentioned. shaft provided with a bit-supporting means, a balance-plate at the upper or inner end of said last mentioned shaft, said balance-plate provided with an elongated slot extending longitudinally of its axis, a sleeve provided with a flange, the sleeve positioned in the elongated slot of the plate and the flanged portion of said sleeve resting upon the top of the plate, said pin extending into said sleeve, and said plate provided with a head at substantially right angles to the body of the plate.

3. A device of the class described, comprising a casing and a cap, shafts carried by said casing and cap, a train of gears carried by said cap and being driven by-the shaft of the cap, a balance-plate secured to the shaft of the casing, and means carried by the bal- Copies of this patent may be obtained for ance plate and coeper-ating with the balance plate and the gears foreonverting the rotary movement of the gears into a reciprocal movement imparted to the shaft of the easing.

4. In a device of the class described, the combination of a casing provided with a depending neck, a shaft in said neck and extending beyond the lower end of the neck, said shaft provided upon its extended end with bit-carrying means, a balance-plate secured to the inner end of said shaft, said balance-plate provided with an enlarged curved head integral with one end and near its other end with an elongated sleeve-carrying slot, a flanged sleeve slidably mounted in said slot, a plurality of screws carried by said cap, nuts sunk in the outer face of said cap and threaded upon the outer ends of said screws, a power shaft carried by said cap and projecting at its inner end into the casing, a primary cog secured to the inner end of said power shaft, an auxiliary cog meshing with said primary cog and positioned upon one of said screws, a primary gear secured to said auxiliary cog and mounted uponthe same screw, an auxiliary gear mounted upon the other screw, and a pin secured to said auxiliarygear and extending into said sleeve.

5. A device of the class described, comprising a casing, a detachable cap carried thereby, a bit-carrying shaft carried'by said casing, a driving shaft carried by said cap,

and means for converting a rotary motion imparted to said driving shaft into a reciprocal motion imparted to said bit-carrying shaft, said means including a weighted balanceplate and a train of gears furnished with means for oscillating said balanceplate and thereby oscillating the bit-carrying shaft.

In testimony whereof I hereunto aflix my signature.

CARL E. TIDEMAN.

five cents each, by addressing the Commissioner of Patents. Washington, D. C." 

